Tool for inserting and extracting pins and washers



Jan. 22, 1929. 1,699,856

, s. D. POMPANO {*TOOLHFOR INSERTING AND EXTRACTING ,PI'NS AND WASHERSFiled June 9, 1928 avwento'c Patented Jan. 22, 1929.

SALVATORE D. POMPANO, OF EAST HAVEN, CQNNECTICUT.

TOOL FOR INSERTING AND EXTRAGTING PINS AND WASHERS.

Application filed ,Jllne 9, 1928. Serial No. earner.

The present invention relates ,to tools of a certain class employed forinserting and extracting washers and pins. The improved tool isparticularly useful in such lnstances where the washers or pins or thellke are located in places which are comparatively d1f ficult of accessso that an ordinary pair of pliers or similar tool cannot beconveniently operated.

The improved tool is designed for several purposes, one purpose being tooperate with ordinary straight headless pins and for this purpose twopairs of gripping jaws are providcd on the tool so that the proper pairmay be selected, one pair of jaws being useful for operation onvertically arranged pins and the other, for horizontally arranged pins.The tool is also provided with jaws or means for holding or grippingwashers, particularly the open slotted or horseshoe washers commonlyused 1 with motor vehicles. Furthermore, means are provided on the toolfor extracting cotter pins. Each device or member of the tool performsits separate function but these members are rendered operative by acommon member ormembers in such a manner that the several devices ormembers are co-operative in their action. The invention will be morefully described hereinafter with reference to the accompanying drawings,wherein- 1 Figure 1 is a plan view of the complete tool in one positionof operation where the jaws are closed to grip a pin;

"l igurc 2 is a plan view showing the tool with the pin gripping jawsopen and the jaw for holding washers in its closed position;

Figure 3 is a plan View of the same tool showing the pin gripping jawsin the closed position and the washer gripping jaw in its full openposition;

Figure i is a detail view of a piece which carries the two movable awsof the tool;

Figure 5 is a detail view showing the operating plate or member of thetool, and

Figure 6 is a plan View of the body of the tool.

Referring to said drawings, the complete tool consists of the bodymember 1 which is preferably a drop forging or, if desired, a castingmay be employed. The tool is enlarged at one end to provide a head 2 andthis head is cut out to form a seat 3 for a washer which is an ordinaryopen slotted type commonly used on motor vehicles. The opposite end ofthe member 1 is enlarged to provide a head in which a seat is formed fora separate piece l carrying the movable aws 5 and 6 and which piece isarranged to turn on pivot pin 7. The fixed or immovable menu hers of thejaws are formed by integral projections or extensions 8 and 9 on thebody member 1. The operative member of the tool consists of a plate 10which is movable so as to slide on the body member 1. Screws or pins 11hold the plate 10 in operative relation with the body member 1 and whichpins 11 lie within slots l2 which limit the sliding movement of saidplate 10.

/Vhen the sliding. plate 10 is in the position shown in Figure 1, thebifurcated ends 13 partly cover the washer which is placed in the jaw orseat 3 and in this same position of the plate, the pin gripping jaws areboth closed so that the vertically arranged jaws 58 would grip avertical pin such as a or the horizontally arranged jaws 6-9 would gripthe horizontal pin 7) and to enhance the gripping action of the jaws,each jaw has the groove 14. i

In the position shown in Figure 1, the jaws are closed and it will benoted that the pin or screw 15 is in an angular position relatively tothe pivot 7 andwhich pin is within the radius slot 16. To effect openingof the jaws, the sliding plate 10 is thrown into the position shown inFigure 2 and to facilitate operation of this plate, the lug 17 isprovided thereon. The relative position of the pin 15 with the pivot 7is such that when the plate is brought to the extreme position, in thedirection of the indicating arrow 0, the result is that the movable jaws6 6 will open as shown. In Figure 3, the jaw for holding the washer iscompletely open so that the washer may be readily inserted therein andwhen thebifurcat'ed members 3 are pushed over to completely or partlycover the washer, the latter is firmly held in place so that it may beseated where required with facility and furthermore, this grippingaction will also serve to hold the washer which is tobe re moved.

The jaws for removing and inserting pins are inpairs, one pair being inalignment with the body of the tool and these jaws are employed forremoving horizontal pins. The other jaws lie at right angles to the bodyand these jaws are employed for removing or inserting vertical pins. Afurther device consisting of the spur 18 is carried on the tool and thisdevice is employed for removing cotter pins. One way of operating thisdevice is shown by broken lines in Figure 1 and in this case the hook orspur 18 is engaged in the looped head of the cotter. pin 19. The bolt ornutwith which the pin is associated provides the rest for the fulcrum ofthe tool, and which fulcrum is the horizontal stationary jaw 9. \Viththis arrangement, the cotter pin is readily engaged by the hook deviceunder a leverage action, the clinched ends of the cotter pin are broughttogether and pulled through the hole in the end of the bolt, "forexample.

Various modifications may be made in carrying out the details of theinvention hereinbefore described and it is to be understood that anymodification coming fairly within the terms of the appended claims shallbe covered thereby.

I claim 1. A device of the class described having a bod member, a plateslidably mounted on said body, a pair of jaws at one end of said bodysubstantially in alignment therewith, another pair of aws extended atsubstantially right angles to said body, said jaws liavingstationai'yand movable members,said

movable members of both jaws being carried by one piece pivotallymounted on said body and said ilate operating to open and close saidmovable jaws.

2. A device of the class described having a body member, a plate looselymounted on said body, a pair of jaws at one end of said bodysubstantially in alignment therewith, another set of jaws extended atsubstantially right angles to said body, said jaws having stationary andmovable members, said movable members of both jaws being carried by onepiece pivotally mounted on said body, said plate moving to open andclose said movable jaws and means for operating and for limiting themovement of said plate.

3. A tool of the class described comprising a body, gripping jaws at oneend of said body adapted for holding pins, a gripping jaw at theopposite end of said body adapted to receive and hold washers and acommon operating means for all of said jaws comprising a plate slidablymounted on said body.

4. A tool of the class described comprising a body, a set of grippingjaws at one end of said body, said jaws having movable and fixedmembers, a slidmg plate for opening and closing said jaws and anextracting hook extending from said body operative with one of saidfixed members as a fulcrum therefor.

5. A tool of the class described comprising a body, two pairs ofgripping jaws located at one end of the body at right angles to eachother, a pivoted member carrying the movable aws of both pairs ofgripping jaws, the immovable jaws forming integral parts oi. said body,a gripping or holding jaw at the opposite end of saidbody member and acommon operating plate for all of said gripping or holding aws.

6. A tool of the class described comprising a body, two pairs ofgripping jaws located at one end of the body at right angles to eachother, a pivoted member carrying the movable jaws of both pairs ofgripping jaws, the immovable jaws forming integral parts of said body, agripping or holding jaw at the oppo site end of said body member, acommon oper' atingplate for all of said gripping or holding jawsslidably mounted on said body and the movement of said plate beingguided and limited by pin and slotted connections between said plate andsaid body.

7. A tool of the class described comprising a body, two pairs ofgripping jaws located at one end of the body at right angles to eachother, a pivoted piece carrying the movable members for both pairs ofgripping jaws, immovable membersof said jaws forming integral parts ofsaid body, a gripping or holding jaw at the opposite end of said bodymember, a common operating plate for all of said gripping or holdingjaws slidably mounted on said body and a depending hooked lug operatingas an extractor and opera ting with one of said iml'novable members as afulcrum therefor.

Signed at New Haven, county of New Haven, State of Connecticut, this 8thday of June, 1928. j V

SALVATORE POMPANO.

